Nuprl Lemma : es-fix-test
∀[Info:Type]. ∀[es:EO+(Info)]. ∀[X:EClass(Top)]. ∀[f:E(X) ─→ E(X)].
∀[e:E(X)]
(((f f**(e)) = f**(e) ∈ E(X))
∧ (f**(f e) = f**(e) ∈ E(X))
∧ (∀[a:E(X)]. f**(a) = f**(e) ∈ E(X) supposing a is f*(e)))
supposing ∀x:E(X). f x c≤ x
Proof
Definitions occuring in Statement :
es-E-interface: E(X),
eclass: EClass(A[eo; e]),
event-ordering+: EO+(Info),
es-fix: f**(e),
es-causle: e c≤ e',
uimplies: b supposing a,
uall: ∀[x:A]. B[x],
top: Top,
all: ∀x:A. B[x],
and: P ∧ Q,
apply: f a,
function: x:A ─→ B[x],
universe: Type,
equal: s = t ∈ T,
fun-connected: y is f*(x)
Lemmas :
es-fix_property,
es-E-interface-property,
es-fix_wf2,
es-E_wf,
event-ordering+_subtype,
es-fix-step,
iff_weakening_equal,
assert_wf,
in-eclass_wf,
es-fix-connected,
fun-connected_wf,
all_wf,
es-causle_wf
\mforall{}[Info:Type]. \mforall{}[es:EO+(Info)]. \mforall{}[X:EClass(Top)]. \mforall{}[f:E(X) {}\mrightarrow{} E(X)].
\mforall{}[e:E(X)]
(((f f**(e)) = f**(e))
\mwedge{} (f**(f e) = f**(e))
\mwedge{} (\mforall{}[a:E(X)]. f**(a) = f**(e) supposing a is f*(e)))
supposing \mforall{}x:E(X). f x c\mleq{} x
Date html generated:
2015_07_17-PM-01_01_05
Last ObjectModification:
2015_02_04-PM-05_29_44
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